Iafmd21 migrationtoiso450012018pub

IAF MD 21:2018 International Accreditation Forum, Inc.
Issued: 18 January 2018 Application Date: March 2018 IAF MD 21:2018, Issue 1
© International Accreditation Forum, Inc. 2018
IAF Mandatory Document
Requirements for the Migration to
ISO 45001:2018
from OHSAS 18001:2007
Issue 1
(IAF MD 21:2018)

Issue 1 Requirements for the Migration to Page 2 of 12
ISO 45001:2018 from OHSAS 18001:2007
The International Accreditation Forum, Inc. (IAF) facilitates trade and supports
regulators by operating a worldwide mutual recognition arrangement among
Accreditation Bodies (ABs) in order that the results issued by Conformity Assessment
Bodies (CABs) accredited by IAF members are accepted globally.
Accreditation reduces risk for business and its customers by assuring them that
accredited CABs are competent to carry out the work they undertake within their scope
of accreditation. ABs that are members of IAF and their accredited CABs are required to
comply with appropriate international standards and IAF mandatory documents for the
consistent application of those standards.
ABs that are signatories to the IAF Multilateral Recognition Arrangement (MLA) are
evaluated regularly by an appointed team of peers to provide confidence in the
operation of their accreditation programs. The structure and scope of the IAF MLA is
detailed in IAF PR 4 - Structure of IAF MLA and Endorsed Normative Documents.
The IAF MLA is structured in five levels: Level 1 specifies mandatory criteria that apply
to all ABs, ISO/IEC 17011. The combination of a Level 2 activity(ies) and the
corresponding Level 3 normative document(s) is called the main scope of the MLA, and
the combination of Level 4 (if applicable) and Level 5 relevant normative documents is
called a sub-scope of the MLA.
 The main scope of the MLA includes activities e.g. product certification and
associated mandatory documents e.g. ISO/IEC 17065. The attestations made
by CABs at the main scope level are considered to be equally reliable.
 The sub-scope of the MLA includes conformity assessment requirements e.g.
ISO 9001 and scheme specific requirements, where applicable, e.g. ISO TS
22003. The attestations made by CABs at the sub scope level are considered
to be equivalent.
The IAF MLA delivers the confidence needed for market acceptance of conformity
assessment outcomes. An attestation issued, within the scope of the IAF MLA, by a
body that is accredited by an IAF MLA signatory AB can be recognized worldwide,
thereby facilitating international trade.

ISO 45001:2018 from OHSAS 18001:2007
INTRODUCTION TO IAF MANDATORY DOCUMENTS
The term “should” is used in this document to indicate recognised means of meeting the
requirements of the standard. A Conformity Assessment Body (CAB) can meet these in
an equivalent way provided this can be demonstrated to an Accreditation Body (AB).
The term “shall” is used in this document to indicate those provisions which, reflecting
the requirements of the relevant standard, are mandatory.
Background to the Development of Standards for
Occupational Health and Safety Management Systems (OHSMS)
(NOTE: In many cultures "occupational health and safety", or "OH&S", is referred to as
"occupational safety and health", or "OSH". The two terms are synonymous.)
The development of standards for OHSMS began in the early 1990s, with the eventual
publication of BS 8800 in 1996. An ISO workshop in that year debated whether it was
appropriate to develop an OHSMS International Standard and decided the timing was
not right to do so.
The OHSAS Project Group was formed in the late 1990s and published OHSAS 18001
in 1999 and OHSAS 18002 in 2000. AS/NZ 4801 was also published in 2000, followed
by the publication of the ILO's OSH Guidelines in 2001 and ANSI Z10 in 2003. A
revision of OHSAS 18001 was published in 2007, and a revision of OHSAS 18002 in
2008. ANSI Z10 was revised in 2013.
While the OHSAS Project Group has full ownership of the copyright in OHSAS 18001, it
has entered into royalty free licensing and copyright agreements with many National
Standardization Bodies. This has facilitated the adoption and use of OHSAS 18001 at
the national level, and promoted its implementation by organizations. In turn, this has
led to a global improvement in OH&S culture.
Further ISO consultations on developing an OHSMS International Standard took place
in 2007, resulting in a second decision to wait.
The most recent OHSAS Standards and Certificates survey (for 2011 data)
demonstrated that 127 countries are now using OHSMS standards, mainly based on the
adoption or adaptation of OHSAS 18001, and indicated that there is a need for an
International Standard in this field. Consequently, a new work item proposal was
presented to ISO in March 2013, which led to the project to develop ISO 45001
Occupational health and safety management systems – Requirements with guidance for
use.

ISO 45001:2018 from OHSAS 18001:2007
It should be noted that some Legislators/Regulators have made reference to OHSAS
18001 in their local legal frameworks and this needs to be taken into consideration in
the migration process.
In addition, there are other OHSMS standards in some countries that are similar to, but
not fully aligned with, OHSAS 18001; however, these standards are not covered by this
IAF Mandatory Document.
The ISO project to develop ISO 45001 seeks to harmonize these standards and to
share best practice.

ISO 45001:2018 from OHSAS 18001:2007
TABLE OF CONTENTS
1. INTRODUCTION ........................................................................................................ 6
2. MIGRATION................................................................................................................ 6
2.1 General............................................................................................................... 6
2.2 Validity of Accredited Certifications to OHSAS 18001:2007 ............................... 7
3. SPECIFIC GUIDANCE FOR INTERESTED PARTIES INVOLVED IN
CERTIFICATION AND ACCREDITATION.................................................................. 7
3.1 Organizations Using OHSAS 18001:2007.......................................................... 7
4. IAF MIGRATION REQUIREMENTS ........................................................................... 8
4.1 Implementation of Migration of Certification from OHSAS 18001:2007 to ISO
45001:2018......................................................................................................... 8
4.2 General Requirements for Accreditation Bodies and Certification Bodies .......... 8
Issue No 1
Prepared by: IAF Technical Committee
Approved by: IAF Members Date: 27 December 2017
Issue Date: 18 January 2018 Application Date: March 2018
Name for Enquiries: Elva Nilsen
IAF Corporate Secretary
Telephone: +1 613 454-8159
Email: secretary@iaf.nu

ISO 45001:2018 from OHSAS 18001:2007
Requirements for the Migration to ISO 45001:2018
1. INTRODUCTION
This document provides requirements for the migration from OHSAS 18001:2007 to ISO
45001:2018 and has been prepared by the International Accreditation Forum (IAF) in
cooperation with the OHSAS Project Group and ISO to provide advice to interested
parties on migration arrangements to be considered before implementing ISO 45001. It
identifies activities which shall be considered by relevant interested parties and
increases understanding of the context of ISO 45001.
These migration requirements apply only for migration of OHSAS 18001:2007 to ISO
45001:2018 by the same Certification Body.
Relevant interested parties who will benefit from this document include:
i) Organizations certified and/or using OHSAS 18001:2007.
ii) Accreditation Bodies (AB’s).
iii) Certification Bodies (CB’s).
iv) Legislators and Regulators.
v) Trade/Contracting/Procurement Boards.
vi) Workers.
vii) Society.
2. MIGRATION
2.1 General
The OHSAS Project Group has fully reviewed and endorsed ISO 45001:2018 as the
replacement for OHSAS 18001:2007. Therefore, once ISO 45001:2018 has been
published, the official status of OHSAS 18001:2007 will be considered as being
“Withdrawn” taking account the three-year migration period. This will be communicated
by the OHSAS Project Group to the NSBs that use OHSAS 18001:2007 and to the
known local Legislators/Regulators that have adopted it in their local legal frameworks.
The IAF, OHSAS Project Group and the ISO have agreed to a three-year migration
period from the publication date of ISO 45001:2018.

ISO 45001:2018 from OHSAS 18001:2007
NOTE: Any reference to OHSAS 18001:2007 also applies to BS OHSAS 18001:2007
and to any national equivalent standard.
IAF Resolution 2016-15 was passed by the IAF General Assembly in New Delhi, India
on 4th November 2016 endorsing a 3-year migration period to ISO 45001:2018.
It is planned that the IAF, OHSAS Project Group and ISO will communicate using all
necessary channels about this Migration process. Training packages, Awareness
activities, and Webinars are a few examples of what will be created and performed by
their members in order to be able to properly inform and encourage existing customers
certified to OHSAS 18001:2007 or any equivalent national standard to move to the new
standard.
2.2 Validity of Accredited Certifications to OHSAS 18001:2007
The IAF will only promote the acceptance of ISO 45001:2018 accredited certificates
after the end of the ISO 45001:2018 migration period.
The expiry date of accredited certifications to OHSAS 18001:2007 issued during the
migration period shall correspond to the end of the three-year migration period.
NOTE: Where local legislation/regulation requires accredited OHSMS certification and
the legislation/regulation has not been amended to reference ISO 45001, the validity of
accredited certification to BS OHSAS 18001 (or national equivalent standard) may be
extended.
3. SPECIFIC GUIDANCE FOR INTERESTED PARTIES INVOLVED IN
CERTIFICATION AND ACCREDITATION
For any organisation, the degree of change necessary will be dependent upon the
maturity and effectiveness of the current management system and organisational
structure and practices. Therefore, an impact analysis/gap assessment is strongly
recommended in order to identify realistic resource and time implications.
3.1 Organizations Using OHSAS 18001:2007
Organizations using OHSAS 18001:2007 are recommended to take the following
actions:
i) Obtain a copy of ISO 45001 (or a copy of the earlier Final Draft International
Standard if early planning and adaptation is preferred).

ISO 45001:2018 from OHSAS 18001:2007
ii) Identify the gaps in the OHSMS which need to be addressed to meet any
new requirements.
iii) Develop an implementation plan.
iv) Ensure that any new competence needs are met and create awareness for
all parties that have an impact on the effectiveness of the OHSMS.
v) Update the existing OHSMS to meet the new requirements and provide
verification of its effectiveness.
vi) Where applicable, liaise with their Certification Body for migration
arrangements.
NOTE: Users should be aware that technical changes can occur in the development of
a standard following the Draft International Standard (DIS) or later draft stage document
before the International Standard (IS). While organizations can start their preparations
at the DIS or later draft stage document before the IS, significant changes to the
OHSMS should not be implemented until the technical content is finalized, i.e. either at
the Final Draft International Standard (FDIS) stage, or when the standard is published.
4. IAF MIGRATION REQUIREMENTS
4.1 Implementation of Migration of Certification from OHSAS 18001:2007 to ISO
45001:2018
This document is intended to allow for early planning and adoption of the new
requirements of ISO 45001:2018, taking into account changes that may still occur
during the DIS or later draft stage document before the IS.
While planning activities are encouraged during the DIS or later draft stage document
before the IS, it is recommended that organisations exercise caution as there may still
be further technical changes until the standard is published.
CB’s shall keep track of all evaluation activities during the DIS stage or latest draft stage
document before the IS for full verification at the time of the migration audit to ISO
45001:2018.
4.2 General Requirements for Accreditation Bodies and Certification Bodies
4.2.1 Accreditation Bodies
The implementation shall, wherever possible, be verified during normal scheduled
activity, noting that there may be some need for additional assessment time.

ISO 45001:2018 from OHSAS 18001:2007
Additional assessments may be necessary for a CB requesting accreditation within an
accelerated timeframe.
AB’s shall, at the earliest opportunity, communicate their migration arrangements and
requirements to their accredited CB’s. It is recommended that the migration
arrangements take account of the following:
i) Training and verification of competence of assessors and other staff,
including the training related to auditing of control of OH&S risks.
NOTE: AB’s are encouraged to commence training at the DIS stage but
additional training may be required to address any differences between the
latest draft stage document and the final published standard.
ii) The AB shall develop its migration programmes to make full use of available
time, including carrying out as much activity as possible at the DIS or latest
draft stage document in order to enable accreditation for the new standard to
be available at the earliest opportunity. Recognizing the risk associated with
utilizing a draft document and the need for potential additional activity upon
the final document.
iii) Assessments that include the migration to ISO 45001:2018 shall focus on
changes to be implemented by CB’s as a result of implementing the new
standard: primary consideration should be given to consistent interpretation
of the requirements, competence, reporting and any associated change in
audit methodology. The assessment will also need to review the CB’s
arrangements for migrating its clients.
iv) For accredited OHSAS 18001:2007 CB’s that have issued only accredited
OHSAS 18001:2007 certificates, at a minimum the AB shall conduct a
documentation review for a minimum of one assessor man-day.
a. If the output of the review is positive the new accreditation certificate
may be issued.
b. If the output is negative the AB will decide about any additional
evaluation needed (i.e. additional documentation review or an office
assessment or witnessing an audit conducted by the CB).
NOTE 1: AB’s should note that ISO/CASCO WG 48 is developing ISO/IEC TS 17021-10
which will include specific competence requirements for auditing and certification to an
OHSMS. Furthermore, it is to be noted that a new IAF MD on OH&SMS is under
development and that it shall be used for all ISO 45001:2018 accreditation activities.

ISO 45001:2018 from OHSAS 18001:2007
4.2.2 Certification Bodies
CB’s are encouraged to start briefing their clients from the DIS stage and can, if
requested, start to perform gap analysis between their clients' systems and the DIS.
CB’s shall keep track of all evaluation activities during the DIS stage or latest draft stage
document before the IS for full verification at the time of the migration audit to ISO
45001:2018.
Accredited certifications to ISO 45001:2018 shall only be issued once the CB has been
accredited to deliver certification to the new standard and after the organization has
demonstrated conformity to ISO 45001:2018.
Based on the agreement with the organizations certified to OHSAS 18001:2007, CB’s
can conduct migration activities during a routine surveillance, recertification audit or a
special audit. Where migration audits are carried out in conjunction with scheduled
surveillance or recertification (i.e. progressive or staged approach) then a minimum of 1
auditor man-day is required to be added to cover existing and new requirements implied
by ISO 45001:2018. Recognizing that each client and migration audit is unique and
audit duration will be increased above the minimum as needed to sufficiently
demonstrate conformity to ISO 45001:2018.
CB’s shall communicate their migration arrangements to their clients at the earliest
opportunity. It is recommended that this is done at the DIS or latest draft stage
document before the IS.
CB’s shall develop migration plans to address the following:
i) Training and verification of competence of auditors and other staff.
NOTE 1: While CB’s are encouraged to commence training at the DIS stage,
they should be aware that additional training may be required to address any
differences between the DIS or latest draft stage document and the final
published standard.
NOTE 2: CB’s should note that ISO/CASCO WG 48 is developing ISO/IEC
TS 17021-10 which will include specific competence requirements for
auditing and certification to an OHSMS. Furthermore, it is to be noted that a
new IAF MD on OH&SMS is under development and that it shall be used for
all ISO 45001:2018 accreditation activities.
ii) The CB’s arrangements for communicating with its clients.

ISO 45001:2018 from OHSAS 18001:2007
iii) The CB’s arrangements for auditing conformity to the new standard. For
example, will it be a single visit or a staged approach.
iv) How the CB will ensure clients’ ongoing conformity to OHSAS 18001:2007
through the migration process.
v) How the CB plans to use the results of any evaluation activities conducted
during the DIS or latest draft stage document before the IS.
vi) Action to be taken in respect of clients that have failed to complete the
migration by three years after the publication of ISO 45001:2018. For
example, the level of audit necessary for certification to be restored.
The following shall also be ensured:
i) All issues that require client action for conformity with the new requirements
shall be clearly identified and raised as documented findings.
ii) Only when all identified outstanding issues have been appropriately
addressed and the effectiveness of the management system demonstrated,
can auditors recommend certification to the published ISO 45001:2018
standard.
iii) Records shall be available to verify that all prior migration audit findings have
been evaluated for corrective action and conformity before any
recommendation for approval to ISO 45001:2018 can be made.
iv) The CB shall ensure that the evaluation of a client’s conformity to the new
requirements during the migration phase does not interfere with the client’s
on-going conformity to OHSAS 18001:2007.
v) Where evaluation activities have taken place at the DIS or FDIS, a review will
be undertaken by the Decision Maker to ensure the validity of such activity is
taken into account in the decision process.
vi) The decision to issue certification to ISO 45001:2018 shall only be made
once actions in respect of all outstanding major non-conformities have been
reviewed, accepted and verified and the client’s corrective action plan for any
minor non-conformities has been reviewed and accepted.
NOTE: It is expected that all AB’s and CB’s are aware of the document
AAPG Paper – Good practices for AB’s and CAB’s in the Transition to ISO
9001:2015 that, even if related to a different standard, are very important to
be also considered in the context of this migration process. The AAPG paper
can be downloaded free of charge at
http://www.iaf.nu/articles/Accreditation_Auditing_Practices_Group_(AAPG)/2
0).

ISO 45001:2018 from OHSAS 18001:2007
Referral to IAF ID 10 for transition of ISO 14001:2015 should also be referred
to for good practices.
End of IAF Mandatory Document Requirements for the Migration to ISO 45001:2018
Further Information:
For further Information on this document or other IAF documents, contact any member
of IAF or the IAF Secretariat.
For contact details of members of IAF see the IAF website http://www.iaf.nu.
Secretariat:
IAF Corporate Secretary
Telephone: +1 613 454-8159
Email: secretary@iaf.nu

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